[PATCH 1/4]: powerpc/cell spidernet burst alignment patch.
From: Linas Vepstas <hidden>
Date: 2006-08-11 17:06:33
Also in:
lkml, netdev
This patch increases the Burst Address alignment from 64 to 1024 in the Spidernet driver. This improves transmit performance for large packets from about 100Mbps to 300-400Mbps. Signed-off-by: James K Lewis <redacted> Signed-off-by: Linas Vepstas <redacted> Cc: Utz Bacher <redacted> Cc: Jens Osterkamp <redacted> Cc: Arnd Bergmann <arnd@arndb.de> ---- drivers/net/spider_net.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.18-rc3-mm2/drivers/net/spider_net.h ===================================================================
--- linux-2.6.18-rc3-mm2.orig/drivers/net/spider_net.h 2006-08-07 14:37:10.000000000 -0500
+++ linux-2.6.18-rc3-mm2/drivers/net/spider_net.h 2006-08-11 11:09:57.000000000 -0500@@ -209,7 +209,7 @@ extern char spider_net_driver_name[]; #define SPIDER_NET_DMA_RX_FEND_VALUE 0x00030003 /* to set TX_DMA_EN */ #define SPIDER_NET_TX_DMA_EN 0x80000000 -#define SPIDER_NET_GDTDCEIDIS 0x00000002 +#define SPIDER_NET_GDTDCEIDIS 0x00000302 #define SPIDER_NET_DMA_TX_VALUE SPIDER_NET_TX_DMA_EN | \ SPIDER_NET_GDTDCEIDIS #define SPIDER_NET_DMA_TX_FEND_VALUE 0x00030003